二维类hoffmann配合物[Fe(Fpz)2Pt(CN)4]中自旋交叉现象的高压研究

2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO) Pub Date : 2022-10-10 DOI:10.1109/ELNANO54667.2022.9927123

Ruixin Li, Hanlin Yu, Quanjun Li, G. Levchenko, A. Gaspar, J. Real, Hennagii Fylymonov, L. Berezhnaya

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摘要

利用磁学、粉末x射线衍射、拉曼、红外和可见吸收光谱等高压实验技术，对二维类hoffmann配合物[Fe(Fpz)2Pt(CN)4]中的自旋交叉现象进行了高压研究。得到了该化合物的完整相图(T, P)。自旋跃迁的转变温度与压力呈线性关系，但滞后宽度表现出与理论预测不同的非单调行为。弹性相互作用模型的讨论表明，在0.4 GPa以上的压力下，八面体结构的局部变形导致了磁滞宽度随压力的异常变化。

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High-pressure study of spin-crossover phenomenon in two-dimensional Hoffmann-like complex [Fe(Fpz)2Pt(CN)4]

High-pressure study of spin-crossover phenomenon in two-dimensional Hoffmann-like complex [Fe(Fpz)2Pt(CN)4] have been carried out by high-pressure experimental techniques including magnetics, powder X-ray diffraction, Raman, Infrared and visible absorption spectroscopy. A complete phase diagram (T, P) for the compound has been obtained. The transition temperature for spin transitions is linearly dependent on pressure, but the hysteresis width shows non-monotonic behavior that differs from theoretical predictions. The elastic interaction model discussion reveals that the anomalous variation of the hysteresis width with pressure is caused by the local distortion of the octahedral structure at pressures above 0.4 GPa.

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2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)

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